11 citations · 14 across the 13 of their papers we have counts for
14 papers
Context-Enriched Performance Boosting via Operator Decomposition
Leonardo Massai, Sebastiano Messina, Nicolas Kirsch +1
Performance Boosting (PB) is a control framework that, for a pre-stabilized system subject to process disturbances, parametrizes the controllers that preserve closed…
Free Parametrization of L_2-Bounded Structured State-Space Controllers for Nonlinear Control with Stability Guarantees
Muhammad Zakwan, Leonardo Massai, Efe C. Balta +1
Designing stabilizing control policies for nonlinear systems while optimizing complex objectives remains a formidable challenge. Neural networks (NNs), despite their expressive pow…
Boosting the transient performance of reference tracking controllers with neural networks
Nicolas Kirsch, Leonardo Massai, Giancarlo Ferrari-Trecate
Reference tracking is a key objective in many control systems, including those characterized by complex nonlinear dynamics. In these settings, traditional control approaches can ef…
L2RU: a Structured State Space Model with prescribed L2-bound
Leonardo Massai, Muhammad Zakwan, Giancarlo Ferrari-Trecate
Structured state-space models (SSMs) have recently emerged as a powerful architecture at the intersection of machine learning and control, featuring layers composed of discrete-tim…
Neural Identification of Feedback-Stabilized Nonlinear Systems
Mahrokh G. Boroujeni, Laura Meroi, Leonardo Massai +2
Neural networks have demonstrated remarkable success in modeling nonlinear dynamical systems. However, identifying these systems from closed-loop experimental data remains a challe…
Equilibria in Network Constrained Markets with System Operator
Giacomo Como, Fabio Fagnani, Leonardo Massai +1
We study a networked economic system composed of producers supplying a single homogeneous good to a number of geographically separated markets and of a centralized authority, c…
HfO-based platform for high-index-contrast visible/UV integrated photonics
Oscar Jaramillo, Vighnesh Natarajan, Hamim Mahmud Rivy +3
Ultraviolet and visible integrated photonics are enabling for applications in quantum information, sensing, and spectroscopy, among others. Few materials support low-loss photonics…
Optimal distributed control with stability guarantees by training a network of neural closed-loop maps
Danilo Saccani, Leonardo Massai, Luca Furieri +1
This paper proposes a novel approach to improve the performance of distributed nonlinear control systems while preserving stability by leveraging Deep Neural Networks (DNNs). We bu…
Unconstrained learning of networked nonlinear systems via free parametrization of stable interconnected operators
Leonardo Massai, Danilo Saccani, Luca Furieri +1
This paper characterizes a new parametrization of nonlinear networked incrementally -bounded operators in discrete time. The distinctive novelty is that our parametrization is…
Pure circularly polarized light emission from waveguide microring resonators
Leonardo Massai, Tom Schatteburg, Jonathan P. Home +1
Circularly polarized light plays a key role in many applications including spectroscopy, microscopy, and control of atomic systems. Particularly in the latter, high polarization pu…
Equilibria in Network Constrained Energy Markets
Leonardo Massai, Giacomo Como, Fabio Fagnani
We study an energy market composed of producers who compete to supply energy to different markets and want to maximize their profits. The energy market is modeled by a graph repres…
Stability and phase transitions of dynamical flow networks with finite capacities
Leonardo Massai, Giacomo Como, Fabio Fagnani
We study deterministic continuous-time lossy dynamical flow networks with constant exogenous demands, fixed routing, and finite flow and buffer capacities. In the considered model,…
Equilibria and Systemic Risk in Saturated Networks
Leonardo Massai, Giacomo Como, Fabio Fagnani
We undertake a fundamental study of network equilibria modeled as solutions of fixed point equations for monotone linear functions with saturation nonlinearities. The considered mo…
Risk measures and Margining control
Giuseppe Carlo Calafiore, Leonardo Massai
This document constitutes the final report of the contractual activity between Directa SIM and Dipartimento di Automatica e Informatica, Politecnico di Torino, on the research topi…